/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/PBDRigidClustering.h
GetConnectivityEdges Provides a list of each rigid body's current siblings and associated strain within the cluster.
const [TArrayCollectionArray](API\Runtime\Engine\Physics\Experimental\TArrayCollectionArray)< [TArray](API\Runtime\Core\Containers\TArray)< [TConnectivityEdge](API\Runtime\Chaos\Chaos\TConnectivityEdge)< [FReal](API\Runtime\ChaosCore\Chaos\FReal) > > > & GetConnectivityEdges() const